This is a reply to an old message and only peripherally related to nntpcache, but.... On Tue, 10 Feb 1998, jbessels wrote: > Please reinstall the User-authent., it may be very difficult but can be also > extremely usefull. I'm the firewall admin. of a certain Bank and we use DHCP. > This means normally all users get a different Ip address everytime they switch > on the machine. Extend the lease period. I've just been through DHCP configuration using both the NT and ISC DHCP servers and a given machine can be given pretty well any lease period you choose. The defaults are a few hours, but tests have shown that even if the original machine is switched off, another machine won't be allocated the leased IP until the lease expires _and_ when it's switched back on, it will be reassigned the same IP number it was leased originally. I've since set leases at 3 months for several school-based servers I administer so that we could quickly identify which machine in a lab has which IP without having to set up specific MAC->IP assignment tables. All that's needed in that kind of situation is to switch on the machines in order to get sequential IP assignments. AB